Fire-rated sealing and fire stopping in Gravesend, Kent
Fire-rated and intumescent sealing of service penetrations and linear gaps across Gravesend, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.
- Builders’ foam or ordinary silicone in compartment walls
- Service penetrations left open after M&E works
- Openings found when ceilings come down for a refit
Fire stopping for businesses in Gravesend
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Fire stopping in Gravesend
A fire-rated sealant is only one part of a tested system: its test evidence covers one product in one kind of wall or floor, with set services, gaps, depths and backing. We match each opening to that detail before any sealant goes in, and raise it with you if it falls outside. Most enquiries involve openings found when ceilings come down for a refit and fire-rated sealant that has cracked or shrunk back, across linear gaps at wall heads, joints between fire-resisting walls and floors and cable penetrations. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Gravesend, that means joint design, primers and backing rod as standard.
Older buildings in towns like Gravesend have often been rewired and replumbed several times, with gaps around pipes and cables left after each change. Intumescent or fire-rated sealant is used wherever the specification asks for it, built up exactly as tested.
Every job is signed off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.
- Place
- Gravesend (DA12, DA11)
- Wider area
- Kent
- Cover
- 12 months on every job
- Quotes
- A fixed quote before we start
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Different surfaces, different methods
Linear joints
Head-of-wall gaps, slab edges and wall junctions are linear joints. BS EN 1366-4 testing sets the joint widths, depths, backing and movement a seal covers, and we work within it.
Masonry and concrete
Core-drilled holes are neat; broken-out ones rarely are. The gap is measured at the widest point so we know it sits within the tested range.
Site staff or a sealant specialist?
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
What happens if it’s left?
It is cheaper to seal service penetrations as each services package finishes than to come back for them later. Openings are visible, access is open and nothing has to be taken down. A failed joint is easier to put right before damp shows inside. After a leak, there’s drying, repairs and redecoration on top.
What a job costs comes down to how many linear metres there are, what has to come out first and how the joints are reached. Call for a quote when you’re ready.
Why appoint us
- Specification-led, product-correct work
- Work carried out by CSCS-carded applicators
- Failed material removed, not covered up
- Clear, fixed quotes
Read how commercial sealant jobs are priced or how we’re accredited.
Compartment walls and floors in Gravesend
Gravesend lies roughly 21 miles out from central London. Office refits around the commuter belt bring new cabling through fire-resisting walls. For England, the fire stopping of penetrations is dealt with in Approved Document B. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. Either way, we install the specified product to its tested detail.
For a site team at a college like North West Kent College, which lies east of Gravesend, fire-rated sealing is best scheduled after the summer works. Wherever services are added at a hospital such as Gravesham Community Hospital, 1.1 miles to the north-west of Gravesend, the compartment line has to be made good with the specified product.
Gravesend is about 9 miles north-west of Gillingham, in Kent. Any commercial site in Gravesend is covered. Gravesend is one of 931 places we cover in Kent for service penetrations. For work in that direction, see our London page.
We take on service penetrations across the DA12 and DA11 postcode area, for business premises of every kind. Buildings on Christ Church Road, Hillside Drive and Laurel Avenue are within our area. With the A2 and A226 nearby, Gravesend is straightforward for us to reach. We also cover Windmill Hill (1 mile north-west), Milton-next-Gravesend (1 mile north-east), Denton (1 mile east), Singlewell or Ifield (1 mile south) and Northfleet (1 mile west). A short drive away, we cover Maidstone (13 miles south-east), Dartford (7 miles west), Sevenoaks (13 miles south-west), Swanley (9 miles west), Kings Hill (11 miles south) and Foley Park (12 miles south-east).
What’s near Gravesend
Locally, jobs take us to sites close to Northfleet Urban Country Park, St John's Catholic Comprehensive and St John's Catholic Comprehensive, among other places. The nearest railway station is Gravesend station, about 0.9 miles north-west of the centre. Nearby you’ll also find Gravesham Museum (0.9 miles north-west) and Stone Castle (4.5 miles west). Open spaces near Gravesend include Sawyers Lake and Gad's Hill.
Owners, agents and contractors
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.
CHAS accredited and a Constructionline member, we make supplier vetting simple. We’re fully insured, and our insurance certificate can go with the quote.
Questions we are asked in Gravesend
Can work at a site such as University of Greenwich fit around teaching?
Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.
Do you work on fire-rated sealing in hotels in Gravesend?
Yes. We install fire-rated and intumescent sealant where it is specified. Each seal follows the tested detail, and rooms are done in turn.
Do you guarantee your work?
Yes, for 12 months. If a joint fails because of how we installed it, we come back and put it right.
Do you work in Gravesend?
Yes. Gravesend is in our area and the rest of Kent, within our coverage of Greater London, South East England and Scotland. For a quote, speak to us on 01277 525 020 or send photos by email.
What site paperwork can you supply?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.
Is it fine to apply new sealant on top of old?
No, never. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.
Does weather matter for sealant work?
It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.
Places near Gravesend
Other services in Gravesend
Common problems we fix in Gravesend
Openings in fire-resisting walls typically appear when services are added or changed. A new cable pulled by an electrician, a pipe rerouted by a plumber or a data run drilled through a riser can leave the hole behind. Across several fit-outs, the openings add up.
Most enquiries start with something like this:
- Head-of-wall gaps with no fire seal
- Seals that don’t match their tested detail
- Penetration schedules that need working through
- Damaged fire seals in risers and voids
On estates like Canal Industrial Park, 0.7 miles north of Gravesend, the wall between office and warehouse is often fire-resisting, and cables through it need the specified seal.
What to look for in a quote
- Do they follow the manufacturer’s priming guidance?
- Can the work be phased to keep areas open?
- What site paperwork they can supply
- What the guarantee covers, and for how long
Our process
When we get to site, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before anything is cut or cleaned, and the work normally takes anything from one day to a planned run of visits, depending on the number of seals and the access. If you have more than one building in Gravesend, they can often be done on the same visit, with one quote covering them. Give us your access times and we will fit the work in.
- We read the specification, drawings or penetration schedule you send.
- On site, each opening is checked against the tested detail it is meant to follow.
- Anything that doesn’t belong in the opening, such as expanding foam or general-purpose filler, is removed.
- Mineral wool or other backing goes in wherever the detail asks.
- We apply the specified sealant to the depth and around the services as the detail shows.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
What we need from you
- Have the specification and drawings to hand
- Send asbestos survey details if the building is pre-2000
- Flag any permit to work we will need
Getting a fixed quote
For a fixed quote, phone 01277 525 020 or email the details over with the site address and an outline of the work. Our quote form is another easy route.